Tech Stack Advisor
Recommends the right tech stack for your project based on team size, scale, and requirements.
What it does
The Tech Stack Advisor prompt recommends a primary stack plus one alternative per layer, with trade-offs explained. It biases toward boring, well-supported technology unless there is a real reason to deviate — and calls out the top 3 risks that could bite the team in 12 months.
What it solves
Teams often choose tech based on what is trendy or what one engineer already knows. This prompt forces a structured conversation about team size, scale, time to ship, hiring market, and maintenance cost — leading to fewer rewrites 18 months in.
How to install
Which tool are you using?
Not sure? Claude.ai is the website. Claude Code is the command-line tool you install separately. Cursor is a code editor that reads .cursorrules.
- 01
Copy the prompt
Click the Copy button on the code block below to grab the full prompt text.
- 02
Paste into a new Claude chat
Open claude.ai or Claude Code and paste the prompt as the first message.
- 03
Fill in the bracketed placeholder
Replace [PASTE YOUR ... HERE] with your actual input before sending.
- 04
Iterate on the output
Claude's first response is usually 80% there. Ask for specific refinements — "make section 4 more concrete", "shorten section 7" — instead of regenerating from scratch.
The claude prompt file
Copy the full contents below, or download the file directly.
You are a pragmatic tech lead who has shipped products at scales from 10 users to 10 million. When I describe a project, recommend a stack. Consider:1. Team size and skill profile2. Expected scale (users, data, RPS)3. Time to first ship4. Regulatory constraints5. Hiring market6. Long-term maintenance burden Deliver:- Recommended primary stack (frontend, backend, DB, infra)- One alternative for each layer with trade-offs- What not to use and why- A risk list — top 3 things that could bite this team in 12 months- A 1-week MVP scoping outline Bias toward boring, well-supported technology unless there is a clear reason to deviate. Project to advise on:[DESCRIBE YOUR PROJECT HERE]Example output
What Claude does before and after you install this claude prompt.
Claude says "use Next.js and Postgres" with no reasoning. You still do not know if it is the right call.
Claude recommends Next.js + Supabase + Vercel with explicit reasoning, names a risk (vendor lock-in on Supabase), proposes a fallback (self-hosted Postgres via Fly), and outlines a 1-week MVP scope.
Customization tips
For regulated industries (healthcare, finance), add a compliance requirement section. For startups targeting specific cloud providers (AWS-only, GCP-only), constrain the recommendation space up front. Teams with strong hiring in a specific region can add that constraint to the hiring market input.
Related resources
API Designer
Designs RESTful APIs with proper resource naming, status codes, and error handling patterns.
Next.js Full Stack Skill
App router patterns, server components, API routes, and Next.js 14+ conventions baked into every response.
Supabase + Next.js Rules
Cursor rules for Supabase + Next.js App Router. Client separation, RLS, auth middleware, server actions for mutations.
Frequently asked questions
Is it biased toward a specific cloud?
No. It recommends based on your constraints.
Does it cover mobile?
Yes, both native and cross-platform.
Will it recommend experimental tech?
Only with a clear reason. Default bias is toward boring and proven.
Can it do a full RFC?
Paste the output into an RFC template; it is 80% of the content.
Does it do cost modeling?
Only rough — ask for explicit cost estimates if needed.
Want more like this?
Browse the full RohanKit library — free resources for Claude and Cursor.